✨ NEW: contributors list v1

Author: jycouet

CONTRIBUTING.md

@@ -0,0 +1,21 @@
+# Contributing
+
+Thanks for considering contributing to KitQL
+
+## How?
+
+Feel free to use:
+
+- [Discussions](https://github.com/jycouet/kitql/discussions)
+- [Issues](https://github.com/jycouet/kitql/issues) (with minimal explanations 🙃)
+- [Pull requests](https://github.com/jycouet/kitql/pulls) _Linked to an issue_
+
+## How to be part of contributors list?
+
+Comment on Issue or Pull Request with this format:
+
+```
+@all-contributors please add @<username> for <contributions>
+```
+
+From [allcontributors.org](https://allcontributors.org/docs/en/overview)